/Engine/Source/Editor/MaterialEditor/Public/IMaterialEditor.h
Creates a new material expression comment
UMaterialExpressionComment* Newly created material expression comment
virtual [UMaterialExpressionComment](API\Runtime\Engine\Materials\UMaterialExpressionComment) * CreateNewMaterialExpressionComment ( const FVector2D & NodePos, const class [UEdGraph](API\Runtime\Engine\EdGraph\UEdGraph) * Graph )